Supplemental Materials

What is included with this book?

The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

The Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.

Summary

Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam.

CCENT/CCNA ICND1 100-105 Official Cert Guide, Academic Edition is a comprehensive textbook and study package that provides you with an introduction to foundational networking concepts and hands-on application. Best-selling author and expert instructor Wendell Odom shares study hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.

A free copy of the CCENT/CCNA ICND1 100-105 Network Simulator Lite software, complete with meaningful lab exercises that help you hone your hands-on skills with the command-line interface for routers and switches

Links to a series of hands-on config labs developed by the author

Online interactive practice exercises that help you enhance your knowledge

More than 90 minutes of video mentoring from the author

A final preparation chapter that guides you through tools and resources to help you craft your review and test-taking strategies

Study plan suggestions and templates to help you organize and optimize your study time

Well regarded for its level of detail, study plans, assessment features, challenging review questions and exercises, video instruction, and hands-on labs, this official study guide helps you master the concepts and techniques that ensure your success.

This official study guide helps you master all the topics on the CCENT/CCNA ICND1 exam, including

In addition to the wealth of updated content, this new edition includes a series of free hands-on exercises to help you master several real-world configuration and troubleshooting activities. These exercises can be performed on the CCENT/CCNA ICND1 100-105 Network Simulator Lite software included for free on the DVD or companion web page that accompanies this book. This software, which simulates the experience of working on actual Cisco routers and switches, contains the following 24 free lab exercises, covering all the topics in Part II, the first hands-on configuration section of the book:

1. Configuring Hostnames

2. Configuring Local Usernames

3. Configuring Switch IP Settings

4. Interface Settings I

5. Interface Settings II

6. Interface Settings III

7. Interface Status I

8. Interface Status II

9. Interface Status III

10. Interface Status IV

11. Setting Switch Passwords

12. Switch CLI Configuration Process I

13. Switch CLI Configuration Process II

14. Switch CLI Exec Mode

15. Switch Forwarding I

16. Switch IP Address

17. Switch IP Connectivity I

18. Switch Security I

19. Switch Security II

20. Switch Security III

21. Switch Security IV

22. Switch Security Configuration Scenario

23. Switch Interfaces and Forwarding Configuration Scenario

24. Port Security Troubleshooting Scenario

If you are interested in exploring more hands-on labs and practicing configuration and troubleshooting with more router and switch commands, see the special 50% discount offer in the coupon code included in the sleeve in the back of this book.

Wendell Odom, CCIE No. 1624 (Emeritus), has been in the networking industry since 1981. He has worked as a network engineer, consultant, systems engineer, instructor, and course developer; he currently works writing and creating certification study tools. This book is his 27th edition of some product for Pearson, and he is the author of all editions of the CCNA R&S and CCENT Cert Guides from Cisco Press. He has written books about topics from networking basics, certification guides throughout the years for CCENT, CCNA R&S, CCNA DC, CCNP ROUTE, CCNP QoS, and CCIE R&S. He helped develop the popular Pearson Network Simulator. He maintains study tools, links to his blogs, and other resources at www.certskills.com.

Table of Contents

Introduction xxxvi

Your Study Plan 2

Part I Networking Fundamentals 13

Chapter 1 Introduction to TCP/IP Networking 14

Foundation Topics 15

Perspectives on Networking 15

TCP/IP Networking Model 16

History Leading to TCP/IP 17

Overview of the TCP/IP Networking Model 18

TCP/IP Application Layer 19

TCP/IP Transport Layer 20

TCP/IP Network Layer 22

TCP/IP Link Layer (Data Link Plus Physical) 25

TCP/IP Model and Terminology 26

OSI Networking Model 28

Comparing OSI and TCP/IP 29

Describing Protocols by Referencing the OSI Layers 29

OSI Layers and Their Functions 30

OSI Layering Concepts and Benefits 31

OSI Encapsulation Terminology 31

Chapter Summary 33

Chapter 2 Fundamentals of Ethernet LANs 38

Foundation Topics 39

An Overview of LANs 39

Typical SOHO LANs 39

Typical Enterprise LANs 40

The Variety of Ethernet Physical Layer Standards 41

Consistent Behavior over All Links Using the Ethernet Data Link Layer 41

Building Physical Ethernet Networks with UTP 42

Transmitting Data Using Twisted Pairs 42

Breaking Down a UTP Ethernet Link 43

UTP Cabling Pinouts for 10BASE-T and 100BASE-T 45

UTP Cabling Pinouts for 1000BASE-T 48

Sending Data in Ethernet Networks 48

Ethernet Data-Link Protocols 49

Sending Ethernet Frames with Switches and Hubs 52

Chapter Summary 55

Chapter 3 Fundamentals of WANs 60

Foundation Topics 61

Leased-Line WANs 61

Positioning Leased Lines with LANs and Routers 61

Physical Details of Leased Lines 62

Data-Link Details of Leased Lines 64

Ethernet as a WAN Technology 67

Ethernet WANs that Create a Layer 2 Service 68

How Routers Route IP Packets Using Ethernet Emulation 68

Accessing the Internet 69

The Internet as a Large WAN 69

Internet Access (WAN) Links 71

Digital Subscriber Line 72

Cable Internet 73

Chapter Summary 75

Chapter 4 Fundamentals of IPv4 Addressing and Routing 78

Foundation Topics 79

Overview of Network Layer Functions 79

Network Layer Routing (Forwarding) Logic 79

How Network Layer Routing Uses LANs and WANs 81

IP Addressing and How Addressing Helps IP Routing 82

Routing Protocols 83

IPv4 Addressing 84

Rules for IP Addresses 84

Rules for Grouping IP Addresses 84

IP Subnetting 89

IPv4 Routing 90

IPv4 Host Routing 90

Router Forwarding Decisions and the IP Routing Table 91

IPv4 Routing Protocols 93

Other Network Layer Features 94

Using Names and the Domain Name System 95

The Address Resolution Protocol 96

ICMP Echo and the ping Command 97

Chapter Summary 98

Chapter 5 Fundamentals of TCP/IP Transport and Applications 102

Foundation Topics 103

TCP/IP Layer 4 Protocols: TCP and UDP 103

Transmission Control Protocol 103

User Datagram Protocol 111

TCP/IP Applications 112

Uniform Resource Identifiers 112

Finding the Web Server Using DNS 113

Transferring Files with HTTP 114

How the Receiving Host Identifies the Correct Receiving Application 115

Chapter Summary 117

Part I Review 120

Part II Implementing Basic Ethernet LANs 123

Chapter 6 Using the Command-Line Interface 124

Foundation Topics 125

Accessing the Cisco Catalyst Switch CLI 125

Cisco Catalyst Switches 125

Accessing the Cisco IOS CLI 126

CLI Help Features 132

The debug and show Commands 134

Configuring Cisco IOS Software 134

Configuration Submodes and Contexts 135

Storing Switch Configuration Files 137

Copying and Erasing Configuration Files 139

Chapter Summary 140

Chapter 7 Analyzing Ethernet LAN Switching 146

Foundation Topics 147

LAN Switching Concepts 147

Overview of Switching Logic 147

Forwarding Known Unicast Frames 148

Learning MAC Addresses 151

Flooding Unknown Unicast and Broadcast Frames 151

Avoiding Loops Using Spanning Tree Protocol 152

LAN Switching Summary 153

Verifying and Analyzing Ethernet Switching 154

Demonstrating MAC Learning 154

Switch Interfaces 155

Finding Entries in the MAC Address Table 157

Managing the MAC Address Table (Aging, Clearing) 158

MAC Address Tables with Multiple Switches 159

Chapter Summary 161

Chapter 8 Configuring Basic Switch Management 166

Foundation Topics 167

Securing the Switch CLI 167

Securing User Mode and Privileged Mode with Simple Passwords 167

Securing User Mode Access with Local Usernames and Passwords 171

Securing User Mode Access with External Authentication Servers 173

Securing Remote Access with Secure Shell 174

Enabling IPv4 for Remote Access 177

Host and Switch IP Settings 177

Configuring IPv4 on a Switch 179

Configuring a Switch to Learn Its IP Address with DHCP 180

Verifying IPv4 on a Switch 180

Miscellaneous Settings Useful in Lab 181

History Buffer Commands 181

The logging synchronous, exec-timeout, and no ip domain-lookup Commands 182